The stuff about thinking about coming into oncoming traffic is something I've done. Similarly, when I walk by ledge or high window I think about how easily I could jump, or when holding small living things how easily I could hurt/kill them. My understanding is these unwanted sudden thoughts are actually pretty common. People don't really have a desire to do it, but can't help stopping and thinking they could. I think Jung argued denying you have these thoughts or abilities is unhealthy, though acting on them is obviously not good.